What is the rail switching power supply? What does it do?

The appearance design and structure of switching power supply is divided into two kinds: one is the general switching power supply, the installation to screw fixed, relative disassembly and disassembly is not very convenient.

One is linear power supply, the other is often said that the guide rail switching power supply, in the case of the design of 35mm rail lock, and AC contactor, automobile relay, wiring terminals immediately stuck in the case of 35mm rail, disassembly and disassembly is very time and effort saving.

Contemporary automation equipment on the common fault shutdown regulations are very strict, generally in minutes for enterprise performance evaluation machine equipment running rate, rail switching power saving time and labor characteristics of no doubt more suitable for the rapid maintenance of automation equipment. So what is the rail switching power supply? What does it do?

In the linear power supply, let the output power transistor work in the linear way, and the linear power supply is not the same, the guideway switching power supply is to let the output power transistor work in the on-off and off, you in two cases, add the output power transistor on the volt-ann multiplication is not big (on off, low power, large flow; When off, high voltage, low current)/ photocurrent multiplied on the power electronic device is the loss of the output power integrated circuit technology.

Compared with the linear power supply, the guideway switching power supply cuts the input DC voltage into a monopulse voltage equivalent to the input voltage amplitude to maintain. The duty cycle of the single pulse is adjusted by the control panel of the switching power supply. Once the input voltage is chopped into a square wave of alternating current, its amplitude can be increased or decreased according to the transformer. According to the number of secondary winding transformer can be raised output voltage several groups. Finally, this type of communication AC wave is filtered through the transformer to obtain the DC output voltage.

The guideway switching power supply is used as the switching power supply of PLC, large number on the spot and instrument panel in automation equipment. Its appearance design structure is divided into two kinds: one is the general switching power supply, the installation to screw fixed, relative disassembly and disassembly is not very convenient. The other is the guideway switching power supply that is often said. The design scheme on the case has 35mm guideway lock, which can be immediately stuck on the 35mm guideway in the cabinet like AC contactor, automobile relay and wiring terminals. Disassembly and disassembly are very time-saving and labor-saving. Contemporary automation equipment on the common fault shutdown regulations are very strict, generally in minutes for enterprise performance evaluation machine equipment running rate, rail switching power saving time and labor characteristics of no doubt more suitable for the rapid maintenance of automation equipment.